This brand's history is somewhat bizarre. It was the aircraft builder North American Aviation (NAA) who founded Rocketdyne Div in 1955.

-After it was sold to the Rockwell Intl group between 1967 and 1996, it was sold again to Boeing that same year, becoming that brand's rocket engine division until 2005, when it was acquired by United Technologies Group Corp. Later it became Pratt & Whitney's "Pratt & Whitey/Rocketdyne" Division.

-In 2013 it was sold to GenCorp group that already owned Aerojet and the name became "Aerojet-Rocketdyne".

-We had to relate this history because it is the way to be able to understand that, in a certain period of time, the same engines appear in different manufacturer chapters.

-All these companies supplied engines to DoD (Department of Defense) and NASA.

"The H-1"

"NAA Redstone engine"

-Now we have several photographs that are considered "released CONFIDENTIAL documents", and we show them below.

"Two NAA-Rocketdynes and the V-2 engine"

"Three engines used by Redstones"

"Two RS-2101 from the Rockwell period"

"M-5 cluster"

"Nomad"

"XLR-83"

"XLR-83"